Machine foe the manufactuee of potteet



(No Model.) 3 Sheets-Sheet 1.

0. M. RIBONV MACHINE FOR THE MANUFAGTURE OP POTTERY.

Patented July 31, 1883.

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3 Shets-Sheet 2.

(No Model.)

0. M. RIBON.

MACHINE FOR THE MANUFAGTURE' 0F POTTERY.

Patented Julfy 31, 1883.

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(No Model.) 3 Sheets-Sheet 3.

0. M. RIBON.

MACHINE FOR THEMANUFAGTURE 0F POTTERY. No. 282,369. Patented July 31, 1883.

(1 W I I I I) L- L 1' '1 [2f lzl Wwwoses. Ime da/3 UNITED STATES PATENT OFFICE.

. CEBBEIJEON MARTINEZ BIBON, or MoMros, BOLIVAB, UNITED STATES or COLOMBIA.

MACHINE FOR THE MANUFACTURE OF POTTERY.

SPECIFICATION forming part of Letters Patent No; 282,369, dated July 31, 1883.

1 Application filed September 24,1as1. (no model.)

To all whom it may concern: Be it known that I, CERBELEoN lVIAR-TINEZ RIBON, of Mompos, in the State of Bolivar, United States of Colombia, have invented a new and useful Improvement in Machines for the Manufacture of Pottery, of which the following is a full, clear, and exact description, reference being had to the annexed drawings, forming part of this specification.

This invention has for its prime object the provision of a suitable mold for making earthenware with concave-convex surfaces, and es pecially with recessed bottoms, where an annular rimis formed as a base for the Vessel.

The invention consists, first, in constructing the mold of two vertically-divided parts, and a third part, which is inclosed within said parts, whereby the mold may be securely held together in a jigger to be run by power; and, second, in combining with such a mold an adjustable knife adapted to be used in the manufacture of concavo-convex vessels having small necks.

In the drawings, Figures 1, 2, 3, and 4 are views of molds adapted for forming vessels of.

different kinds. Fig. 5 is a side elevation of a machine adapted for use in making largenecked vessels, and Fig. 6 is a similar viewof an improved machine to be used in making vessels having small necks. p

The mold is formed in two parts, A B, of

similar shape, which are adapted to be fitted close together on an imaginary vertical plane, and a third part, 0, which is adapted to be in closed between said parts to form a removable bottom for the mold. The part Cis constructed with its center raised more'or less, in order to form a recess in the bottom of the vessel, and an annular rim, which shall serve as a base for the vessel to rest upon. With this construction the vessel can be easily removed I from the mold, since the part '0 is also removable, and may be taken apart by first removing the outer or inclosing parts, A B. The lower portion of the mold is adapted to be in Sorted into the jigger D, where it will befirm- 1y held by the wedging of the mold into the same, and by the aid of a belt secured around the upper portion of the mold the outer parts M will be securely bound together.

In making vessels having a large neck a machine like that shown in Fig. 5 may be employed; but if the neck of the vessel is to be 1' s, by which it may have a longitudinal move ment independent of the bolts. The standards are provided with adjustable rests T for the bar, by means of which the bar may be I supported at any desired height, and with springs 00 for supporting the bar at a point where it will be out. of the way when not in actual use.

0 represents the jigger, and H is the spindle, by which power is to be applied to the same, which is supported in thetable F.

With this construction the knife L may be lowered into the mold and adjusted laterally and vertically to regulate the thickness of the vessel being manufactured.

What I claim is- '1. The mold formed of the vertically-divided parts A B and the part 0, which is inclosed between said parts to form a removable bottom, substantially as shown and described, and for the purpose set forth.

2. The combination, with the mold and the jigger, of the horizontal bar K, carrying the knife L, and having slots 0' 8 near its ends, the standards I J, having springs m, slots on n, and movable bolts 0 in said slots, and the adjust.- able rests T, secured to the standards, substantially as shown and described.

OERBELEON MARTINEZ RIBON. 

